/Engine/Source/Runtime/Datasmith/CADKernel/Public/CADKernel/Geo/Sampling/Polyline.h
TheFPolylineBBoxis updated by adding all the points of the polyline included in the boundary
void UpdateSubPolylineBBox ( const [FLinearBoundary](API\Runtime\CADKernel\CADKernel\Math\FLinearBoundary) & InBoundary, [FPolylineBBox](API\Runtime\CADKernel\CADKernel\Geo\Sampling\FPolylineBBox) & OutBBox ) const